W6 N 9500C QPL, Manual

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14.2.4 Increasing the upper thread tension ......................................252
14.2.5 Checking the lower thread tension ........................................252
14.3 Tips & tricks ..................................................................................254
14.3.1 Changing the spool ................................................................254
14.3.2 Checking the thread quality ...................................................255
14.3.3 The external spool pin ...........................................................256
14.3.4 Inserting a new needle ...........................................................256
14.3.5 Inserting the bobbin correctly ................................................257
14.3.6 Threading the upper thread correctly ....................................258
14.3.7 Bringing up the lower thread ..................................................259
14.3.8 Checking and cleaning the hook system ...............................259
14.3.9 Checking the needle plate .....................................................260
14.3.10 Checking the hook race .......................................................261
14.3.11 Fitting the needle plate .........................................................262
14.3.12 Using plastic bobbins ...........................................................262
14.3.13 Taking note of the stitch length setting ................................263
14.3.14 Checking the thread tension ................................................263
14.3.15 Correct thread take-up lever / thread take-up arm position .264
14.3.16 Overlocking fabric edges .....................................................265
15 Technical data .....................................................................................266
15.1 Key data .......................................................................................266
15.2 Technical data ...............................................................................266
15.3 EU Declaration of Conformity .......................................................267
16 Service information .............................................................................268
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